diane. >> all right, brian ross, thank you. and now, to the deepening mystery in the murder case against olympic hero oscar today, we saw dueling images. the once beloved athlete in court, hearing the charges against him. solemn, sober. while 700 miles away, there was a memorial for his girlfriend. tonight, two contradictory versions of what happened, and abc's bazi kanani takes us through both. >> reporter: in reeva steenkamp's hometown, her family gathered to say good-bye. >> there's only one thing missing, it's reeva. >> reporter: today, pistorius explained for the first time his version of events on that valentine's day. they were both sleeping, pistorius said, when he woke up and went onto the balcony when he heard a noise in the bathroom. in the pitch dark, he grabbed his gun and rushed into the bathroom, noticed an open window and thought an intruder was hiding in the toilet room. "i knew i had to protect reeva and myself," he wrote.